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Reports method parameter types in methods that look like they are overriding a super method,
but do not because of the parameter type coming from a different package than the super method type,
although the class name matches.
This prevents the parameter's method from overriding the super method and can be very confusing.
<p>Example:
<pre><code>
<b>public class</b> A {
  <b>public void</b> method(Object o) {}
}

<b>public class</b> B <b>extends</b> A {
  <b>public void</b> method(Object o) {} // warning on parameter type here
  <b>class</b> Object {}
}
</code></pre>
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